Aeroplane



II. Boss/IRI.

AEROPLANE.

APPLICATION FILED FEB. Is, I9I8.

LSII Patented Apr. 26, H2L

2 SHEETS-SHEET I.

.' 341 30 l INVENTOR Hans Bossart WITNESSES ATTORN EY H. BOSSART.

AEROPLANE.

APPucATIoN FILED rEB.1e,191s.

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NrrED STATES PATE Nr OFFICE.

' HANS BOSSART, OF LOS ANGELES, CALIFORNIA.

AEBOPLANE.

Specication of Letters Patent.

rat-enten Apr. 2c, i921.

Application led February 16, .1918. Serial No. 217,579.

To all lw/wm t may concern.'

Be it known that l, HANS BossART, a citizen of the United States, residing at Los Angeles,"in the county of Los Angeles and State of California, -have invented certain new and useful Improvements in Aerofication.

This invention relates to air ships, of the heavier-than air type, and` has for its object the productioniof a simple and eicient air ship which will maintain itself in the air, and will not be materially affected in its travel, by striking air holes or air pockets.

Another object of this .invention is the production of a simple and eiicient air ship wherein the supporting plane will be reinforced 'throughout its entire xlength, by. meansV ofI the frame of the machine.

With these and other objects in view this inventionconsists of certain novel constructions, arrangement and combinations of parts as will be hereinafter fully described and claimed. e

In the drawings Figure 1 is a top plan view of the aeroplane Fig.` 2 is a side elevation thereof,

Fig. 3 is a bottom plan ofthe aeroplane, Fig. 4 is a section taken on line 4 4 of Fi 1, 1* Fig. 5 is a section taken on line 5-5-of 41g.

Fig. 6 is a section taken on line 6-6 of Fig. 1, throughelevation rudder,

Fig. 7 is an enlarged transverse sectional view through a portion of a supporting plane.

By referring to the drawings, it will be seen that 1 designates the supporting plane which is o f a rectangular form having its longitudinal axis parallel to the course of flight. The supporting plane 1 is provided with curved rear portions 2 as shown'in' Fig. 1 of the drawings and this supporting plane 1 is provided with downwardly curved side edges 3, which are turned at quite an abrupt angle to the transverse axis of the plane, in this way producing an eiicient air receivingor engaging pocket upon the under face of the supporting plane 1. A frame 4 extends longitudinally through, or

under the center of the plane l and elevation rudder 15. The frame 4 comprises top rails 5, bottom rails 10 and 6 and braces 7, forming a rigid body preferably triangular of which' 4the following is a speci- .ders is provided with ried by 23, the cables 23 continue as one rail toward front and rear ends. The braces 7 connectl the top and bottom rails.

The frame 4 terminates at theforward end thereof in an elevator ruddersuppo'rtmg frame 11, the frame 11 having an upwardly inclined forward lower face 12. The drivingpropeller shaft 13 is carried by elevator supporting frame 11` and a 'propeller blade 14 is carried bythe shaft 13.

Elevator rudders 15-are pivotally mounted upon the frame 11 a downwardly curved edge similar to the supporting plane` 1. Each of the rudders 15 is mounted upon a supporting shaft 16 and is adapted. to be swung by means of operating wires or cables 17. A. supporting member 18 iscarthe frame .4 and is provided with a guide 19 upon the upper end thereof through which guide pass the upper ltilting cables 20. The lower tilting cables 17 pass over guiding pulleys 21 and may be oonnected to a suitable operating means whereby the v rudde'rs 15 may be swung.

A direction rudder 22 is pivotallysecured to the rear end of the frame 4 and is swung by means of the operating wires or cables carried by the plane 1. These wires or cables 23 may be connected to the operating lever25 for permitting the rudder 22 to be easily swung for the purpose of changing the direction of travel of the aeroplane.

- The frame 4 tapers toward thebottom passing over the pulleys 24 and eachof these rudthereof as the frame converges toward the rear. of the plane l, as indicated in section in Figs. 5 and 6 of the drawings.Y This frame 4 is provided with a widened face 26 located at a point `constituting the engine receiving compartment and it should Abe understood that the load which is Aadapted to be carried by the aeroplane may bepplaced in the rear of the motor or engine 9, for the purpose'of balancing the same.

' The plane 1 may be formed of a frame workl constituting a top plate 27 which is braced by means of transversely extending ribs 28, a corrugated bracing means 29 being interposed between the brace 28 and the top plate 27. This top plate-27 is inclined upwardly toward the center thereof as shown' clearly in Fig. 4 of the drawings.

lIf so desired the plane 1 may -be formed of a frame work 30 which is braced by means of transversely extending braces31 having downwardly extending ends 32. A corrugated bracing member 33 is interposed between the top of the frame 430, and the bracing means or members 31 as shown in Fig. 7 These braces 31 may be held in engagement with the frame 3() by means of securing clips 34.l A suitable covering 35 may be placed upon the frame 30 as illustrated.

The planes themselves may be formed of tissue or aluminum sheets fastened underneath the side extension as shown in Fig. 7.

The top plate or covering may be used to protect the frame vfrom rain or snow.

From the foregoing description, it will be seen that a very simple and eicient aeroplane has been produced whereby the supporting plane is rectangular in shape and is mountedin such a manner as to extend lon- -gitudinally or parallel flight of the aeroplane. rhe frame 4 is secured only to the transversely extending bracing members 28 as indicated in Fig. 4, and as the aeroplane'flies in a slightly inclined position, it should be understood that no considerable amount of air or current of air will pass over the top-of the plane, and for this reason the ribs or braces 27 will not materially interfere with the passage 0f the aeroplane to the air. The aeroplane by being constructed as set forth, will offer a minimum amount of resistance to the air.

As shown in Fig. 6, the elevation rudders are braced b means of the transversely extending sha 16.

By considering the drawings, it will be seen that the center of avity is placed well below the supporting p ane, and due to this fact, it will not be necessary to provide stabilizers for the machine. In View of the fact that a' supporting plane is of gonsiderably greater length than the widthther'eof, the sudden downward movement of `the" Yaeroplane, due toair holes, is not probable.. It is preferable to have the supporting plane 1 of approximatelyA two or three times longer than the width thereof.

Should it be desired to cause the aeroplane to the course of to rise, the elevation rudders 15 may be tilted upwardly at their forward ends until the desired altitude has been reached, whereupon the elevation rudders may again be swung to cause the aeroplane toy in a straight line, if it is desired to change the direction of travel laterally, the rudder 22 ma be swung in the direction.

y turning the left hand elevation rudder (uppermost in Fig.y 1) downwardly at its rear end, the aeroplane will incline on its longitudinal 'axis or toward one side thereof, and by similarly turning the right hand elevation rudder the aero lane will ly upwardly and will prescri e a curve at approximately the same altitude. Then by turning the,left hand elevation rudder upwardly again, the aeroplane will come back to its normal position and fly in a straight course when the right hand rudder has been adjusted and the steering rudder 22 has also been adjusted.

What is claimed is 1. An aeroplane of the class described having a frame comprising a pair of top rails, a pair of bottom rails converging at their front and rear ends into a single rail, braces for connecting said rails whereby said frame'will be square in cross section intermediate its ends and triangular in cross section throughout its end portions, a plane situated on said frame. a rudder, and elevating means. 2. A frame for an aeroplane of the class described comprising a pair of top rails, a pair of bottom rails converging at their front land rear ends into a-single rail, and braces for connecting said rails whereby said frame will be Square in crosssection 'intermediate its ends and triangular in cross section throughout its end portions.

3. A frame for an aeroplane of the class described comprising a pair of top rails, a pair of bottom rails converging at their front and rear ends into a single rail, said top rails being situated above said bottom rails and extending so as to runparallel with each other for a distance equal to the bottom rails and having their front and rear end portions converging, and braces for connecting said rails.

In testimony whereof I affix my signature in presence of two witnesses.

' HANS BOSSART.

Witnesses: v

NORMA Gr. BERRYMAN, OLIVE C. GEBAUER. 

